Bearing for turbine water-wheels



(No M81161.)

G. L. RICHARDSON.

BEARING FOR TURBINE WATER WHEELS. N0!

Patented Oct. 80, 1888. Z

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GEORGE LINCOLN RICHARDSON, OF BRUNSlVIOK, MAINE.

EEARI NG FOR TURBINE WATER=WHEELS.

SPECIFICATION forming part of Letters Patent No. 391,918, dated October 30, 1888.

(No model.)

To all whom it may concern;

Be it known that LGnoncn LrNcoLN Brou- ARDSON, a citizen of the United States, residing at Brunswick, in the county of Cumberland and State of Maine, have invented anew and useful Improvement in Bearings for Turbine ater-Wheels, of which the following is a specification.

My invention relates to an improvement in bearings for turbine water-wheels; and the object of my invention is to provide means whereby wear on the lower end of the wheel-shaft is prevented, and whereby thewheel may be vertically adjusted in its casing.

To these ends my invention consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter,aud particularly pointed outinthe claims.

In the accompanying drawings, Figure 1 is an elevation, partly in section, of a turbine watcrwvheel and easing provided with bearings embodying my improvement. Fig. 2 is a detached perspective view of one of my improved bearings. Fig. 8 is a horizontal sectional view taken on the line a: x of Fig. 1. Fig. 4 is a similar view taken on the line y y of Fig. 1.

A represents the wheel-casing, which is of the usual construction, and is provided in its upper side at its center with the usual vertical cylindrical tube, B. At the upper end of said tube is formed an outwardlyextending llange, O, which is provided at diametricallyopposite points with vertical recesses D.

E represents a series of elevating-screws which extend through threaded openings in the collar 0.

F represents the shaft of the water-wheel, which is jonrnaled in and extends downward through the cylindrical tube B. Across the lower side of the depending flange of the whcelcasing extends a bridge-plate,G, on the upper side of which, at its center, is arranged a circular metallic plate, H, having an annular recess in its upper side. In said recess is fitted the lowerside of a'ring, I,which is made of wood and has its upper edge beveled on its outer side,

K represents an annular collar, which is made of metal, is recessed on its under side to receive the upper end of the wooden ring I,

and in the said collar K and in the ring I is stepped the lower end of the wheel-shaft.

L represents a pair of semicircular metallic sections, which are provided in their upper sides with semicircular recesses M, have ears or lugs Ndepending from their outer sides, and are provided at their ends with projecting ears 0. A central opening is formed in the opposing edges of the said section L, so that the same may be closed on the shaft F at a point above the flange G, and the sections L are then secured together by bolts P, which extend through'transverse openings in the ears 0. The said sectiousL constitute a separable collar to bear upon the upper ends of the ad justing screws E, and the depending armsN of said sections engage the openings D in the flange G and serve to guide the said separable collar on the shaft and prevent it from rotating therewith, as will be readily understood.

In the recesses M in the upper side of the metallic separable collar is secured the lower side of an integral wooden collar, It, through which the shaft F also extends.

Rigidly secured to the upper end of the shaft F is a coupling-section, S,Whicl1 bears upon the wooden collar R, the latter thereby serving to sustain the weight of thewater-wheel and pre vent the lower end of its shaft from being worn. The friction between the revolving coupling S and the wooden collar R causes the latter to wear, and as the latter wears away the adj usting-screws E are turned from time to time, so as to elevate the metallic collar L, and thereby compensate .for the wear of the wooden collar R and prevent the wheel from being gradually lowered in its casing. lVhe-n the collar becomes worn to such an extent as to be useless,the same is removed and a new one substituted in its stead,

Having thus described my invention, I claim- 1. The combination ofthe wheel-casing having the tube B, provided with the flange 0, having notches D, the wheel-shaft arranged in the tube,the sectional collar L, secured loosely on the shaft and having the depending arms N arranged in the notches, the wooden collar secured on the sectional collar, and the coupling rigidly secured to the wheelshaft and bearing on the wooden collar, and the adjusting-screws E, engaging flange O and support- In testimony that I claim the foregoing as IO ing the collar L, substantially as described. my own I have hereto affixed my signature in 2. The combination of the wheel-casing havpresence of two witnesses. ing the bridge-plate G, the metallic collar H, 5 secured thereon the wooden collar I, secured GEORGE LINCOLN RICHARDSON.

to the metallic collar, the metallic collar K, l fitted on the wooden collar, and the wheel- \Vitnesses: shaft having its lower end stepped in the col- 1). D. GILMAN, lars I and K, substantially as described. H. A. RICHARDSON. 

